SILISIL Silicone Oil 750 cSt
SILISIL Silicone Oil 750 cSt — mittelhochviskoses PDMS-Silikonöl.
SILISIL Silicone Oil 750 cSt — medium-viscosity polydimethylsiloxane (PDMS).
Damping, waterproofing, and high-temperature resistance. Density 0.971 g/cm³, flash point >300 °C. Shipped from our Swiss warehouse with SDS and TDS.
Internal reference:
40-750.KN.K005
HS code:
3910.0000
SILISIL Silicone Oil 750 cSt — Medium-to-high viscosity PDMS silicone oil
SILISIL Silicone Oil 750 cSt is a medium-to-high-viscosity polydimethylsiloxane (PDMS) that, due to its higher molecular weight, falls between universal silicone oils and high-viscosity damping fluids. It offers outstanding lubrication and damping properties combined with high thermal and electrical resistance—ideal when low-viscosity oils flow too quickly and high-viscosity oils would be too difficult to dispense.
Key features
| Viscosity at 25 °C | 750 cSt (750 mPa·s) |
| Density at 25 °C | 0.971 g/cm³ |
| Flash point (open cup) | >300 °C |
| pour point | -50 °C |
| surface tension | 21.1 mN/m |
| Polymer type | Polydimethylsiloxane (PDMS), linear |
All other properties (refractive index, thermal conductivity, dielectric properties, etc.) are listed as structured product attributes on this page and can be filtered in the shop. Please refer to the technical data sheet (TDS) in the documents section for the official values.
product benefits
- Consistent damping characteristics over a wide temperature range
- Excellent resistance to high temperatures and oxidation
- Excellent Electronics and Cable Coating
- Excellent dielectric properties, consistently low loss factors
- Carrier fluid for silicone grease formulations
- Resistant to moisture, UV rays, and oxidative stress
- Low temperature dependence — consistent performance
Typical Applications by Industry
- Mechanical damping: Torsion and shock absorbers in precision instruments, measurement technology, and automotive applications
- Electronics: Impregnation of coils, transformer windings, and sensor assemblies
- Cable and Line Construction: Filling Oil in High- and Medium-Voltage Cables for Voltage Gradient Regulation
- Silicone grease base: Carrier fluid for silicone greases containing thickeners (pyrogenic silica, lithium soaps, etc.)
- Antifoam concentrates: Highly concentrated defoaming base for mineral oil and water systems
- High-temperature lubrication: Rolling-element and sliding-contact lubrication at elevated operating temperatures
Processing and Compatibility
- Compatible with most organic solvents (aromatic and aliphatic hydrocarbons, ethers, esters)
- Emulsifiable using standard emulsifiers and techniques (rotor-stator, high-pressure homogenization)
- Typical dosage as a surface additive: 0.1–1%
- In formulated or cosmetic products: 1–10%, depending on the formulation
- Inmiscible with water and highly polar solvents (methanol, glycerin)
Storage, Handling, and Shelf Life
- Store in original containers, in a dry place, protected from direct sunlight, at temperatures below 60 °C
- Unopened products typically remain stable for years—the exact shelf life is specified in the TDS
- Close tightly after opening to prevent moisture from entering
- Avoid eye contact — mandatory information in the safety data sheet (SDS)
Available sizes
- 1 kg bottle (sample bottle)
- 5-kg canister
- 25-kg canister
- 200-kg drum
- 1,000 kg IBC (upon request)
SILISIL Silicone Oil 750 cSt is packaged and tested by SILITECH AG in Switzerland and shipped from our Swiss warehouse. Every batch is traceable; we provide batch certificates upon request. Our silicone specialists are always available to assist you in selecting the appropriate viscosity or with formulation development.
Technische Daten zu SILISIL Silicone Oil 750 cSt
| Physical properties | |
|---|---|
| Paint cured | Transparent |
| product information | |
|---|---|
| network type | Not reactive |
| container | 5 kg |
| product approvals | |
|---|---|
| Certificates | RoHS, REACH |
| food contact | No |
| Suitable for medical use | No |
| Areas of application | |
|---|---|
| Main application | Elektronik-Verguss, Schutzbeschichtung (Conformal) |
| Electrical Properties | |
|---|---|
| Electrical insulation | Yes |
| General | |
|---|---|
| Viscosity (cSt) | 750 cSt |
| Density (g/cm³) | 0.971 g/cm³ |
| Flash point (°C) | >300 °C |
| Freezing point (°C) | -50 °C |
Verbindliche Werte entnehmen Sie bitte dem technischen Datenblatt (TDS) im Tab "Dokumente".
Keine öffentlichen Dokumente verfügbar.
Auf Wunsch senden wir Ihnen TDS und SDS gerne per E-Mail zu — Anfrage stellen.
Frequently Asked Questions About SILISIL Silicone Oil 750 cSt
The most important answers regarding applications, features, and availability.
SILISIL Silicone Oil 750 cSt is a medium-viscosity polydimethylsiloxane and is particularly suitable for mechanical damping, impregnation of electronics and cables, as a carrier fluid for silicone greases, and in high-temperature lubrication applications.
The distinctive feature of SILISIL Silicone Oil 750 cSt is its higher molecular weight. It provides a stable damping curve combined with low volatility and high thermal stability. Medium-to-high-viscosity PDMS oils retain their properties even after prolonged thermal stress. The exact specifications—in particular viscosity (750 cSt), density (0.971 g/cm³), flash point (>300 °C), and pour point (-50 °C)—are also listed as product attributes and can be filtered in the shop.
Yes. SILISIL Silicone Oil 750 cSt is an excellent electrical insulator with a dielectric strength of approximately 14 kV/mm, a dielectric constant of approximately 2.7, and a specific volume resistivity in the order of 10¹⁵ Ω·cm. This makes the product particularly suitable for dielectric and electronic impregnation applications.
SILISIL Silicone Oil 750 cSt is available from our Swiss warehouse in standard sizes of 1 kg, 5 kg, 25 kg, 200 kg, and 1,000 kg. Other sizes and packaging options are available upon request to meet customer specifications—we provide a free sample for preliminary testing.
Ihre Frage nicht dabei?
Unser Technik-Team berät Sie persönlich bei Materialauswahl, Verarbeitungsfragen und individuellen Anforderungen — schnell und kompetent.
product specifications
| Physical properties | |
|---|---|
| Paint cured | Transparent |
| product information | |
|---|---|
| network type | Not reactive |
| container | 5 kg |
| product approvals | |
|---|---|
| Certificates | RoHS or REACH |
| food contact | No |
| Suitable for medical use | No |
| Areas of application | |
|---|---|
| Main application | Electronic potting or protective coating (conformal) |
| Electrical Properties | |
|---|---|
| Electrical insulation | Yes |
| Uncategorized | |
|---|---|
| Viscosity (cSt) | 750 cSt |
| Density (g/cm³) | 0.971 g/cm³ |
| Flash point (°C) | >300 °C |
| Freezing point (°C) | -50 °C |
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